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Out of the Freshwater Aquarium
"More tough questions, mostly about our aquarium fishes in their native habitat. The answers might catch you off-guard, but they shouldn't be obscure."
15 Points Per Correct Answer - No time limit
Aside from our familiar domesticated Betta, there are numerous wild Betta species. Though these are strictly freshwater fishes, they are now found on the islands of Sumatra and Borneo as well as on the Asian mainland
because of the late Cretaceous extinctions.
because of continental drift.
because of falling and rising sea levels.
because of human interference.
"Epiphytic algae" grow on the leaves of our aquarium plants. Both in the aquarium and in natural waters, they are an essential part of
the microscopic plankton.
the biofilm community.
the nitrifying bacteria.
Adult fish require less protein than juveniles and can fast for days at a time without harm.
Only three species of cichlids are native to India and Sri Lanka. They are all members of the genus Etroplus but more familiar to aquarists as
"Operculum" is an evocative anatomical label in describing fish, because in Latin it refers to the
In 1857 a German pharmacist living in Caracas (Venezuela), who had a strong amateur interest in biology, sent some interesting unknown fishes to Berlin, where they languished in jars in a museum collection. The males and females weren't even identified as the same species. The rediscovery of these colorful fishes in 1866 is owing to a missionary named
Oscar de Garcia y Astronota.
John Lechmere Guppy.
The floating bubblenest of a gourami serves to
disguise the eggs as frog spawn.
keep the eggs close to a source of oxygen.
provide a floating raft for downstream dispersal of the fry.
Sphagnum peat is a source of beneficial tannins and helps to lower the pH of aquarium water.
True or false: Sphagnum "moss" is actually a fern.
Most fishes' eyes are all but immobile. One fish that can move its eyes almost as if it were winking, however, is a
Black Ruby Barb.
You've decided that your community tank is too much of a mish-mash. You're going to make it a purely "Amazonian" tank. So you'll have to find a new home for your
Severums (Heros sp.)
Pencilfish (Nannostomus sp.)
Black Neon Tetras (Hyphessobrycon sp.)
Spotted Headstanders (Chilodus sp.)
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Compiled Jun 28 12